Seeder.



. E2G. STTHMAN.

y SEEDEBlv APPLICATION FILED NOV. 28, 1908y Patented Apr. 5, ,19101 2 SHEETS-SHEET Z.

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. `.fj/Md if//l'lfcfQ/maw/I Y Witnesses: l Inventor,

4residing atEstevan, county oi. Estevan, 1n

rack into and'out .of engagement with the p readily understand the construction, operdrawings,I like' reference characters desig- View of the saine seeder.

vdicates the usual axle for supporting the 953,929, A Specification of Letters It'atent. Pgent Apr, 5, 1910, i

Application filed November 28, 1908. Serial No. 464,929.

To allwhom it mcylconcera: rod 7. The rock shaft is joiirnaled in Be it known tliatl', FREDERICK G. S'riioH.- l suitable bearings on the seeder box, and is MA N, asubject'of the King of Great Britain, l squared to t a ,socket 11 of an arm 12,

' i which vis pivotally vconnected to a recipro` .the Province of Saskatchewan, Canada', have eating iiiteriorly toothed yoke 13. The teeth 60 invented certain new and useful linproveon this yoke are disposed on opposite -sides inents in Seeders; and I do hereby declare and are adapted to be selectively engage that the following is a. full, clear, and exact hy a cog wheel ,14, loose' on the shaft 3, the description of the invention, such as will cog being driven by a sprocket fast thereenable others skilled in theart to which it to. The yoke 13 and dog 14: are so propor- 35 app'ertains to make and use the saine. tioned, constructed and disposed that the he invention ,to be hereinafter described cog may be moved to such intermediate posi'- i relates to .seeders,. and more particularly to tion between the two sides of the' yokeas mechanism for raising and lowering the to be completely free. Furthermore, both drillsgofltlie seeder and for 'keeping them in ends of vthe yoke are free-of teeth, so that 70` one or the other of such positions. Broadl f when in raised or lowered positiom'the yoke speaking, it comprises an operating shatt will not he engaged by the cog. Movement parallel with the vehicle axle, connections of the yoke, of course, eiiects movement'of betweenv the axle and operating shaft for the drills, through the connections 7, 9, 10, driving the sha-ft, a gear carried by the operl1 and 12. 75 ating shaft, a rack adapted to mesh With the It is desirable to lock thedrills in raised gear, movably moiinted frames adapted t0 or loweredposition when they have loeen` support theA drills, a rock shaft, connections adjusted, To this end, a sprin catch debetween the rackand the rock shaft `for operl vice is provided. The catch evice comating the rack, and means for moving the prises a bm' 16 pvotally @Ongcted to the 8G gein" l v ln order to enable one skilled in the art to. which the invent-ion relates to the more perforations 17. 0n this bar are adjustably secured, by .means of pins passing into the vpeiorations 17, an upper and a lower catch 41.8 and 19 respectively. 'lhe upper 85 .free end of the bar 16 passes through a horizontally sliding` link 20, the rear edge of which isjadapted to be engaged byfthe catches -18 and 19. Engagement of the catch 18 with the edge of the link 20 holds the 90 Iyoke 13 and drills lowered, while `en age'-l ment of the catch 19 with the edge o the link 20 holds them raised. The amount ofvertical adjustment of the drills may be'- iegulated, of course, by simply adjusting the catchesV to various points along the bar 1G..

In order to swing the. yoke-13 toslich several' parts ofi the machine mounted on position that its teeth will be eiigaged by the usual bearing wheels. On this axle are the Cog 111-, a .lGiCIj-opcratcd Slllftliig IOd 2 1 Y pivotally mounted beams 2, inv 'which is is provided, and is adapted to slide longi- 100 journaled the operating shaft 3 of the matiidinally through brackets depending from chine. Froin the axle are also pivot-ally siisthe axle 1 and shaft 3 respectively. This pended frames 4, which carry the drills. rod is provided with two rollers 22, which A ationand use of the same, reference should be had to the accompanying' drawings forining part of the applicatie y Throughout the several views lof the nate the same parts.

In the drawings: Figure 1 is a vertical cross section of a seedei', showing the application of the saine; and, Fig. 2 is a .ti-ont Referring' 4to the drawings in detail, 1 in- "lhe drills are normally depressed to lopera- .engage the front and rear of the yoke retive position bymeans of coil springG. spcctivcly. To the rear end of the shifting This spring is disposed about a rod 7,l which' rod isipivoted the lower cud ota hand lever fis pivotally conn lccd' to the frame et and is' 223, the upper end ciE which rides 'freely over 4 t'confined between a pill 8 on the rod and the 21H 2111524, fOl" 2l lmilfil (ll-Stance arm 9 of a rock shaft 10, the arm, 'being It is necessary, oit course, to free the ed e 5 slidably connected to the uppercnd of the 'of the link 2O from thc catches 18 and lU 110 mounted on the bar 16 before engaging the teeth of the yoke 13' with the cog 14. In

order to elfect the release of the catches and the cooperating link simultaneously with the intermeshing of the yoke and cog, a trip device has been provided, which comprises` a slide 25 mounted on the seed box and connected at its opposite ends respectively to a spring-pressed bell crank lever 2G and a T lever 2T. rlhe opposite sides of the head of the T lever 27 are connected by their chains 28 to the slide rI`he long arm of the T lever is disposed in the path of a stud 29 on the shifting rod 21, and is adapted to be engaged thereby as the rod is reciprocated. In this manner, the link edge may be ireed from the cat-ches each time the yoke is moved to engage its cog.

In order to drive the cog 14, a sprocket chain -30 passes over `the sprocket l5 and over a' second sprocket 31, which is clutched to the axle l for forward drive only by the one-way pawl and ratchet clutch 32 and 33.

It is thought that the operation of the machine, will be clear from the preceding detailed description. l

Changes may be made in the construction, arrangement and disposition of the several parts, without in any way departing from 'the field and scope of the invention, and it is meant to include all such within this application, wherein only a preferred form has been shown and described.

Having th'us fully desc "bed my invention, what I claim as new, and esire to secure by Letters Patent, is K 1. A machine of the character described, comprising an axle, a frame mounted thereon, drill frames pivotally suspended from said axle, a reciprocable yokeJ means for reciprocating said yoke, a rockfbai', connection between said rock bar and yoke, and connections between said rock bar and each of the aforesaid drill frames.

2. A machineJ ofthe character described, comprising an'axle, drill frames Inovably suspended therefrom, a reciprocable yoke, means for reciprocating said yo ke,=a rock bar, connections between said rock bar and yoke, connections between saidrock bar and the aforesaid frame, and means for holding said yoke in its'extreme positions.

3. A machine of the` character described, comprising an axle, drill frames movably suspended' therefrom, a reciprocable yoke, means-for reciprocating said yoke, a rock bar, connections between said rock b ar and yoke, yielding connections between said .rock

bar and the aforesaid frame, and means for holding said yoke in its extreme position.

Ll. A machine of the character described, comprising an axle, drill framesmovably suspended therefrom, a reciprocable yoke, means for reciprocating said yoke, a rock bar, connections between said rock bar and yoke, connections between said rock bar and the aforesaid frame, and trip controlled means for holding said yoke in its extreme positions.

5. A machine of the character described, comprising an axle, drill frames movably suspended therefrom, a toothed reciprocab'le yoke, a gear for operating said yoke, means for intermeshing said gear and yoke, a rock bar, connections between said rock bar and said yoke, and connections between said rock bar and the aforesaid drill frames.

G. A machine-of the character described,

comprising an axle, drill frames movably suspended therefrom, a. toothed reciprocable yoke, a gear for operating saidfyoke, means for intermeshing said gear and yoke, a rock bar, connections between said rock bar and said yoke, connections between said rock bar and the aforesaid drill frames, and means for holding said yoke in its extreme positions.

7. A machine of the character described, comprising an axle, drill frames movably suspended therefrom, a reciprocable yoke, means for reciprocating said yoke, a rock bar, connections between said rock bar ai@ yoke, connections between said rock bar an` the aforesaid frame, and automatically op erated means for holdingi said yoke in its ex treme positions 8. A machine of the character described, comprising' an axle, drill frames movably suspended therefrom, a toothed reciprocable yoke, a gear for operating said yoke, means for intern'ieshing said gear and yoke, a rock bar, connections between said rock lir ami said yoke, connections between said rock bar and the aforesaid drill frames, andconne@ tions betweensaid means for intermeshin said gear andyoke and said means for hcl ing said yoke in its extreme positions, whereby the holding means is operated by the intermeshing means.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

FREDERICK Gr. STITQHMAN.

Vitnesses J. Gr. PETERSON, M. J. France. 

